Closing device for bottles or other vessels.



J. E. FAGE-RSTRUM, A. E. JOHANSSON & K. B; ZETTERBERG.

CLOSING DEVICE FOR BOTTLES OR OTHER VESSELS APPLICATION FILED NOV. 12, 1908. 7 945,842, Patented Jan. 11, 1910.

UNITED STATES PATENT EErcE.

JOI-IAN ElVIIL FAGERSTRtjM, OF HUSQVARNA, AND ANDERS EDVARD JOHANSSON AND KARL BROR ZETTERBERG, OF GISEBO, SWEDEN.

CLOSING DEVICE FOR BOTTLES OR OTHER VESSELS.

Application filed November 12, 1998.

Specification of Letters Patent.

Patented Jan. 11, 1910.

Serial No. @2269.

To all whom it may concern:

Be it known that we, JOHAN EMIL FAGER- s'rnoM, resident of Husqvarna, in the Kingdom of Sweden, railway-station master, AN- nnns EDVARD JoHANssoN, resident of Gisebo, in the Kingdom of Sweden, manufacturer, and KARL BROR ZETTERBERG, resident of Gisebo, in the Kingdom of Sweden, turner, all subjects of the King of Sweden, have invented certain new and useful Improvements in Closing Devices for Bottles or other Vessels, of which the following is a specification, reference being made to the accompanying drawing.

The present invention relates to closing devices for bottles or other vessels the closing part of which is permanently connected with the vessel by means of a link device, and is maintained in the position in which it closes the vessel by means of a locking device.

The invention is characterized mainly by the fa ct that the requisite tightening between the closing part and the vessel is brought about by the free, elastic edge or, as it may be, edge portion of the said part, which, consisting of metal or other suitable material (for instance celluloid), is in the form of a bowl, cup, capsule, calotte or the like, so that the closing part and the vessel are in contact with one another along a circle or a very narrow annular surface. Closing devices with a closing part of this kind or acting in this way will be very cheap, because the said part can be obtained by stamping out and pressing thin metal plate.

On the accompanying drawing are shown, by way of example, closing devices for bottles carried out in accordance with this invention.

Figures 1, 2 and 3 show an arrangement, seen from the side, from in front, and from behind, respectively, while Fig. 4 shows a vertical section of the arrangement taken along the line A-B in Fig. 2. Fig. 5 shows, on a larger scale, a section of an edge portion of the closing part. Figs. (3 and 7 show details.

In the form of construction shown on the drawing the closing part consists of a cupshaped body 1 of metal, which in its closing position is turned upside down, and with its free edge 2 is kept pressed against the head of the bottle 3, so that the said part and the head of the bottle are in contact with each other along a circle or a very narrow annular surface. In order that this contact may close tightly, the edge 2 or that portion 4 of the cup-shaped body, which lies contiguous to the said edge, must be elastic, so that the edge, or the edge portion, forms itself according to the head of the bottle by an outwardly directed pressure from the head. For this purpose the edge portion 4 may taper toward the edge, 2'. c. be somewhat sharp as shown in Fig. By this means, and if the head of the bottle possesses a certain degree of roundness and evenness, will be obtained a tightening which resists such an interior pressure as usually prevails in bottles (6. g. beer bottles) and which prevents dust, dirt, infectious matters and the like from penetrating into the bottle. r further advantage of this closing device lies in the fact that the mouth of the vessel is completely covered by the closing part In the form of construction shown on the drawing the link device and the locking device are carried out in such a manner that they yield elastically in the longitudinal direction of the neck of the bottle at the dos ing. This arrangement is particularly suitable for keeping the closing part pressed against the vessel with an elastic pressure.

As shown in Fig. 4, the chamber within the closing part, when it is in its closing position, is in communication with the interior of the vessel, on account of which the contents of the vessel can pass unobstructed into the said chamber. In many cases the contents of the vessel are of such a nature as to affect the material of which the closing part consists; thus, for instance, the edge of this part, or its edge portion, may be so affected by the contents of the vessel that no tightening can be obtained. In order to obviate this inconvenience, the closing part is provided, in accordance with this invention, with a body which, when the vessel is closed, rests against the mouth of the neck of the vessel, thereby shutting off the interior of the vessel from the chamber in the closing part, into which the contents of the vessel are thus unable to penetrate.

In Fig. 6 a disk 8 of cork or other elastic substance is for this purpose fitted within the cup-shaped part 1. When the bottle is closed, the disk 8 is by means of the locking device kept pressed against the free end of the neck of the bottle and thereby shuts off the interior of the vessel from the chamber in the closing part, or the cup 1, so that the fluid in the vessel cannot penetrate into the said chamber and possibly affect the material of which the closing part 1 consists.

The material of which the body, or the disk 8, consists, ought to be very cheap, so that a new body, or disk, can be fitted within the closing part, every time the vessel is refilled.

In hitherto used closing devices of the kind in question e. in which the closing part is permanently connected with the vessel by means of a link device and is kept in its closing position by means of a locking device) the closing part is generally formed by a body of porcelain or the like, on which body is fitted an india-rubber ring or disk, which brings about the requisite tightening. Porcelain bodies of this kind are, however, rather expensive and break easily. Contrary to this, a closing part constructed in accordance with this invention is very cheap and durable. It consists, as mentioned above, of a cup-, capsule, calotteetc. shaped body 1, on whose bottom, which is turned upward in the closing position of the body, is soldered or otherwise fastened a strip 7 of metal (if the part 1 consists of metal) or other suitable material. The one end of this strip is arranged for permanent connection between it and the link 5, which permanently connects the closing part with the bottle, while the other end is so formed that it serves as a seat for the bow 6 belonging to the locking device.

As shown in F 1g. 7 the strip 7 may be replaced by a wire 9 bent in the shape of a U, and formed in a corresponding way.

Having now described our invention, what we claim as new and desire to secure by Letters Patent is:

A closure for bottles comprising the combination with a cap having its lower edge thinned and flexible and its upper portion substantially rigid, of means for engaging the rigid portion to press against the same and force the thinned edge to conform to the conformation of the bottle head.

In witness whereof we hereunto set our hands in presence of two witnesses.

JOHAN EMIL FAeERsTRoM. ANDERS EDVARD JOHANSSON. KARL BROR ZETTERBERG Witnesses:

EMIL J. EKI-IOLM, CARL JOHN. 

